Isomeric and tautomeric [C<sub>4</sub>H<sub>4</sub>O]<sup>+•</sup> ions; their thermochemistry and collisionally induced fragmentation characteristics
                                
                                    
                                        作者:Peter C. Burgers、John L. Holmes、F. P. Lossing、Alexander A. Mommers、Frank R. Povel、Johan K. Terlouw                                    
                                    
                                        DOI:10.1139/v82-319
                                    
                                    
                                        日期:1982.9.1
                                    
                                    Ionic heats of formation and collisional activation (CA) mass spectra for fifteen isomeric or tautomeric [C4H4O]+• ions are described. Twelve of these species can be characterised by means of their CA mass spectra alone. The relative thermodynamic stabilities of keto–enol tautomers and the ease of interconversion of some ions are discussed. It is emphasised that CA spectra alone (i.e. in the absence
                                    描述了 15 种异构或互变异构 [C4H4O]+• 离子的离子形成热和碰撞活化 (CA) 质谱。这些物种中有 12 种可以仅通过它们的 CA 质谱来表征。讨论了酮-烯醇互变异构体的相对热力学稳定性和一些离子相互转化的难易程度。需要强调的是,单独的 CA 谱图(即没有其他信息,例如形成热等)可能不容易与适当的离子结构相关联。